This part is a kind of semiconductor called A420616.

Function of this product has 1M X 16 CMOS DYNAMIC RAM WITH EDO PAGE MODE.

Manufacturers : AMIC Technology

Image and pinout :

Some of the text within the PDF file :

A420616 Series Preliminary Document Title 1M X 16 CMOS DYNAMIC RAM WITH EDO PAGE MODE Revision History Rev. No. 0.0 0.1 0.2 1M X 16 CMOS DYNAMIC RAM WITH EDO PAGE MODE History Initial issue Modify AC, DC data Modify DC data and all parts guarantee self-refresh mode Issue Date June 23, 1999 February 7, 2002 June 10, 2002 Remark Preliminary PRELIMINARY (June, 2002, Version 0.2) AMIC Technology, Inc. A420616 Series Preliminary Features n Organization: 1,048,576 words X 16 bits n Part Identification - A420616 (1K Ref.) n Single 5.0V power supply/built-in VBB generator n Low power consumption - Operating: 120mA (-45 max) - Standby: 1.0mA (TTL), 1.0mA (CMOS) 1.5mA (Self-refresh current) n High speed - 45/50 ns RAS access time - 20/22 ns column address access time - 12/13 ns CAS access ti [ ... ]

A420616 PDF Datasheet Download